sequential pulse

例句：

1. 1. The sequence of events is crucial to understanding the outcome.
   事件的顺序对于理解结果至关重要。
2. 2. The data in this sequence was collected over a period of several months.
   这一序列的数据是在几个月的时间里收集的。
3. 3. The sequential arrangement of the books on the shelf is logical.
   书架上书籍的有序排列是有道理的。